It's important to note that solubility is usually expressed as grams of solute per 100 grams of solvent (g/100g) or grams of solute per 100 mL of solvent (g/100mL). This means that it's the maximum amount of a substance that can dissolve in a specific amount of water at a given temperature.
For example, the solubility of sugar in water at room temperature is about 200 g/100g. This means that you can dissolve up to 200 grams of sugar in 100 grams of water at room temperature.